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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 5752Generated: October 24, 2026

3-Aminophenol → 5-Hydroxy-2-(3-hydroxyphenyl)isoindoline-1,3-dione

https://huagongshe.com/en/reaction/5752

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-AminophenolHCID 11568—
Reactant4-Hydroxyphthalic acidHCID 11881—
SolventAcetic AcidHCID 176—
Product5-Hydroxy-2-(3-hydroxyphenyl)isoindoline-1,3-dioneHCID 1979398480.5%

Reaction Steps

m-Aminophenol(13.23 g, 0.12 mol) and 4-hydroxyphthalic acid (16.98 g, 0.09 mol) are allowed to react in refluxing acetic acid as described above. The product (21.6 g, 91%), collected as a tan solid, is recrystallized from methanol to give 18.5 g of pale yellow powder [mp 270° C. differential scanning calorimetry] having the following structure: ##STR7##

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05246751
Source datasetuspto-grants-1993_09
ORD IDord-bae6517f0d0c4e2b88dc16d1d8fd4fb6
Source noteuspto-grants-1993_09